The Poisson's ratio characterizes the resultant strain in the lateral direction for a material under longitudinal deformation. Though negative Poisson's ratios (NPR) are theoretically possible within continuum elasticity, they are most frequently observed in engineered materials and structures, as they ar...
Indoor negative air ion concentrations were lower than outdoor ones but potted green plants could improve it. Over the span of a whole day it was higher during day time than during night time. Over a year its maximum appeared in summer and the minimum in winter. 展开 ...
from: {String|Number} the number or letter to start with to: {String|Number} the number or letter to end with step: {String|Number|Object|Function} Optionally pass a step to use. options: {Object|Function}: See all available options...
the sample size required for this study was calculated. The number of events of dependent variables with positive outcome should be at least 10 times the number of independent variables included in the multiple logistic regression analysis, to ensure that the main variables could be ...
As the fractional root of a negative number returns complex values, we will usethe ABS functionsto calculate the absolute values of negative profit (loss in business) to calculate theCAGR. Steps: Insert the data of profit over the years. ...
Interestingly, neither age, nor number of sexual partners, nor age at sexual debut were associated with HPV infection. Conclusions: HPV infection is common in anal canal samples of Russian MSWs. HPV prevalence is higher among men who were HIV positive. 展开 ...
More than 6,000 pregnant women were asked what information they had received about infant immunization in the course of face-to-face interviews conducted as part of the wider "Growing Up in New Zealand" study. Fewer than half of the mothers interviewed recalled having received information on imm...
We further evaluated whether the messages contained welcome words, exclamation marks, emoticons, abusive language and/or a form of address and determined the average number of characters of each message. Results and Discussion Since we were interested in the effect of emotion regulation in unfair ...
Interestingly, a large number of NTE materials have been found in various types of functional materials. In the last two decades good progress has been achieved to discover new phenomena and mechanisms of NTE. In the present review article, NTE is reviewed in functional materials of ferroelectrics...
In our study with a large number of samples, the agreement rate was 25.6% between T-SPOT.TB and culture in diagnosis of smear-negative PTB. About 3/4 of the diagnostic results were different, mainly among which the T-SPOT.TB test was positive while culture was negative in 621 patients....